Drummer Taylor Hawkins has offered an update on the new Foo Fighters album, revealing that Dave Grohl is "working overtime" on ideas for new material.

Drummer Hawkins revealed to Billboard that work on the follow-up to the band's 2011 album 'Wasting Light' has begun, and also hinted that it could be a concept album.

"We're getting started," Hawkins told the US publication. "We're getting our ideas together. Dave has his brain working overtime, like usual, and he's got a lot of great ideas, both musically and conceptually, none that I can speak of at this moment, but it's gonna be great. It's gonna be cool."

Hawkins also suggested that he believes Foo Fighters have not yet made their definitive album. "You always want every one of them to be the best one you've ever done, and you always think you haven't done your best one. Although some people may feel we have, I still think we haven't written our 'Hotel California' or our 'Bohemian Rhapsody' or whatever. Every time you start a record, you have to be, like, ready to fuckin' kill yourself or it's not gonna be any good."

Dave Grohl previously claimed that the next Foo Fighters album will "not be a conventional record". The frontman said that he is working on the record but had no ideas as to when the album will be finished. "Well, we're just writing right now," he said. "When we start working on a record, what I've found is we work best at our own pace, and sometimes it happens quickly and sometimes it takes a while."

Dave Grohl has most recently been focused on his documentary Sound City and its subsequent soundtrack, in which he collaborates with musicians including Steve Nicks, Trent Reznor and Paul McCartney. Speaking in London following a Sound City Players gig in February, Grohl claimed he was ready to start working on Foo Fighters material immediately.